可持续的森林是既能支持野生动物又能维持生计的森林。
A sustainable forest is one that supports both wildlife and livelihoods.
The beauty of mathematics is that it allows us to abstract away from the physical world and focus on the underlying principles.
艺术不是你看到的，而是你让别人看到的。
当你热爱你所做的事情时，获得动力并不难。